CD-ROM SCSI-2 COMMAND REFERENCE MANUAL VERSION 3.1 (OB-U0077C)
TABLE 2-26 READ HEADER (44H)
Bit
Byte 7 6 5 4 3 2 1 0
0 Operation Code (44h)
1 Logical Unit No. Reserved MSF Reserve
2 Logical block address (MSB)
3 Logical block address
4 Logical block address
5 Logical block address (LSB)
6 Reserved
7 Allocation Length (MSB)
8 Allocation Length (LSB)
9 Reserved
TABLE 2-26A HEADER DATA FORMAT
Bit
Byte 7 6 5 4 3 2 1 0
0 CD-ROM Data Mode
1 Reserved
2 Reserved
3 Reserved
4 Absolute CD-ROM Address (MSB)
5 Absolute CD-ROM Address
6 Absolute CD-ROM Address
7 Absolute CD-ROM Address (LSB)
TABLE 2-26B CD-ROM DATA MODE CODES
CD-ROM Mode User Data Field Contents (2048
Bytes)
Auxiliary Field Contents (288
Bytes)
00 all bytes zero all bytes zero
01 user data EDC, L-EC bytes
02 user data user data
03h ~ FFh reserved reserved
